Prewetting stop flow test strip

Details Prewetting stop flow test strip Prewetting stop flow test strip

2007-12-18

2007-12-18

Nguyen, Bao-Thuy L. (Department: 1641)

Chemistry: analytical and immunological testing

Involving diffusion or migration of antigen or antibody

C436S518000, C436S164000, C436S165000, C436S169000, C436S528000, C436S530000, C436S805000, C436S807000, C436S808000, C436S810000, C436S811000, C436S817000, C435S970000, C435S810000, C435S974000, C435S975000

Reexamination Certificate

active

10867420

ABSTRACT:
A test strip and method for detecting an analyte present in a sample. The test strip comprising: a buffer addition zone to which a buffer may be added; an absorbent zone proximal to the buffer addition zone; one or more test zones distal to the buffer addition zone, at least one of the test zones including a first analyte binding agent immobilized therein which is capable of binding to the analyte to be detected; a terminal buffer flow zone distal to the one or more test zones, the absorbent zone being positioned relative to the buffer addition zone and having an absorption capacity relative to the other zones of the test strip such that when a volume of buffer within a predetermined buffer volume range for the test strip is added to the buffer addition zone, a distal diffusion front of the buffer diffuses from the buffer addition zone to a distal diffusion point within the terminal buffer flow zone and then diffuses proximal relative to the one or more test zones; and a sample addition zone distal to the terminal buffer flow zone to which a sample may be added.

REFERENCES:
patent: 4703017 (1987-10-01), Campbell et al.
patent: 4743560 (1988-05-01), Campbell et al.
patent: 4943522 (1990-07-01), Eisinger et al.
patent: 5096837 (1992-03-01), Fan et al.
patent: 5232835 (1993-08-01), Litman et al.
patent: 5238652 (1993-08-01), Sun et al.
patent: 5266497 (1993-11-01), Imai et al.
patent: 5660993 (1997-08-01), Cathey et al.
patent: 5726010 (1998-03-01), Clark
patent: 5750333 (1998-05-01), Clark
patent: 5753517 (1998-05-01), Brooks et al.
patent: 6007999 (1999-12-01), Clark
patent: 6136610 (2000-10-01), Polito et al.
patent: 6284194 (2001-09-01), Chu
patent: 6528323 (2003-03-01), Thayer et al.
patent: 2 204 398 (1988-11-01), None
patent: WO 92/12428 (1992-07-01), None
patent: WO93/03176 (1993-02-01), None
Bimbaum et al., “Latex-Based Thin-Layer Immunoaffinity Chromatography for Quantitation of Protein Analytes,”Analytical Biochem. 206: 168-171 (1992).
Klimov et al., “Improved Immunochromatographic Format for Competitive-Type Assays,”Clinical Chem. 41: 1360 (1995).
Roberts et al., “Investigation of Liposome-Based Immunomigration Sensors for the Detection of Polychlorinated Biphenyls,”Analytical Chem. 67: 482-491 (1995).

Affiliated with

Also associated with

Rating

Prewetting stop flow test strip does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Prewetting stop flow test strip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prewetting stop flow test strip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3878831